IRVINE, Calif. (AP) — A heavy police presence sectioned off a block of homes in a quiet Southern California suburb Sunday, as residents adjusted to life at the center of a sprawling manhunt for a fugitive whose police and military background and vitriolic online manifesto has put the region on high-alert.

Joe Palacio lives down the street from a home surrounded by authorities protecting a police captain mentioned as a target in Christopher Dorner’s Facebook rant against those he held responsible for his dismissal from the LAPD five years ago.